transcription, транскрипция: [ noun ]
Date: circa 1704
: the three-dimensional angular spread at the vertex of a cone measured by the area intercepted by the cone on a unit sphere whose center is the vertex of the cone
SOLID ANGLE
Meaning of SOLID ANGLE in English
Merriam-Webster's Collegiate English vocabulary. Энциклопедический словарь английского языка Merriam Webster. 2003